Effect of different water levels on the production of two garlic cultivars under drip irrigation

• Autor(a) principal: Carrijo, Osmar Alves
• Data de Publicação: 2014
• Outros Autores: Olitta, Antonio Fernando Lordello, Minami, Keigo, Sobrinho, João Alves de Menezes
• Tipo de documento: Artigo
• Idioma: por; eng
• Título da fonte: Pesquisa Agropecuária Brasileira (Online)
• Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/15891
• topic: Allium sativum L.; evaporation factors; class A evaporation pan; soil-water-plant relationships; Allium sativum; fatores de evaporação; tanque A de evaporação; relações solo-água-planta

This study was carried out at the Experimental Field of the Department of Agriculture and Horticulture of the Escola Superior de Agricultura Luiz de Queiroz (ESALQ), in Piracicaba, SP, Brazil. It attempted to determine an adequate water management - and its effects on bulb yield – for the "Juréia" and "Gigante de Lavínia" garlic (Allium sativum L.) cultivars, estimating the water consumption factor of the culture, using values from a class A evaporations pan for drip irrigation. The experiment was conducted in March 1979, in a randomized complete block with 4 x 2 factorial arrangement, eight treatments and four replications. The treatments included the evaporation factors 0.4, 0.7, 1.0 and 1.3 for both cultivars. At the and of the growth cycle, yields of cured bulbs were classified, and from the data gathered it was concluded that: a. evaporation factor 1.0 gave the highest production of class Extra and Large bulbs and the lowest production of Medium and Small size bulbs for 'Juréia", while "Gigante de Lavínia" gave a linear response to an increase in the evaporation factor, 0.4 being the most efficient in water use; for "Juréia", there was a small difference between this and factor 1.0. b. although "Gigante de Lavínia" was severely rusted, it showed higher yields. with larger bulbs and no tillering. c. with "Juréia", there was a significant positive correlation between soil moisture and tillering. d. "Gigante de Lavínia" was more demanding in relation to soil moisture; the application of more water resulted in an increase in 2% in production of bulbs of the "Extra" an "Large" classes, while "Juréia" yield was decreased by 17.3%.